ADP3290集成電路（IC）的特殊用途穩(wěn)壓器規(guī)格書PDF中文資料

ADP3290屬于集成電路（IC）的特殊用途穩(wěn)壓器。由安森美半導(dǎo)體公司制造生產(chǎn)的ADP3290特殊用途穩(wěn)壓器該系列產(chǎn)品用于電源控制、某種形式的轉(zhuǎn)換，適用于特定的復(fù)雜應(yīng)用。因此，各種產(chǎn)品特性集差異較大，包括空燃比傳感器接口、汽車交流發(fā)電機(jī)電壓調(diào)節(jié)、DDR 端接、液體透鏡控制、摩托車轉(zhuǎn)向信號控制、熱電 (peltier) 冷卻器控制、壓電觸覺控制、閥門控制、小型發(fā)動機(jī)管理等。

The ADP3290 is a highly efficient, multi?phase, synchronous buck switching regulator controller optimized for converting a 12 V main supply voltage into the core supply voltage of high performance Intel processors. It uses an internal 8?bit DAC to read a Voltage Identification (VID) code directly from the processor, to set the output voltage between 0.5 V and 1.6 V.

This device uses a multi?mode control architecture to drive the logic?level PWM outputs. The switching frequency can be programmed according to VR size and efficiency. The chip can provide 2?, 3? or 4?phase operation, allowing for the construction of up to four complementary buck switching stages.

The ADP3290 also includes programmable no load offset and load line slope setting function that adjusts the output voltage as a function of the load current, optimally positioning it for a system transient. The ADP3290 also provides accurate and reliable short?circuit protection, adjustable current limit, and a delayed power?good output that accommodates On?The?Fly (OTF) output voltage changes requested by the CPU.

Features

? Selectable 2?, 3?, or 4?Phase Operation at Up to 1 MHz Per Phase

? ±7 mV Worse?Case Differential Sensing Error

? Logic?Level PWM Outputs for Interface to External High Power Drivers

? Fast?Enhanced PWM FlexMode? for Excellent Load Transient Performance

? TRDET to Improve Load Release

? Active Current Balancing Between All Output Phases

? Built?In Power?Good/Crowbar Blanking Supports Dynamic VID Code Changes

? Digitally Programmable 0.5 V to 1.6 V Output Supports VR11.1 Specification

? Programmable Overcurrent Protection with Programmable Latchoff Delay

? This is a Pb?Free Device

Typical Applications

? Desktop PC Power Supplies for:

? Next Generation Intel? Processors

? VRM Modules